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US Patent: 68,740
Power Hammer
Patentee:
Thomas B. Harrison (exact or similar names) - Maquoketa, Jackson County, IA

USPTO Classifications:
267/119, 74/44

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Granted: Sep. 10, 1867

Patent Pictures:
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